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Classification of Variational Conservation Laws of General Plane Symmetric Spacetimes 认领
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作者 Usamah S. Al-Ali Ashfaque h. Bokhari +1 位作者 A. H. Kara Ghulam Shabbir 《理论物理通讯:英文版》 SCIE CAS CSCD 2017年第9期335-341,共7页
在这篇文章,我们讨论能量守恒定律由搬到一架一般飞机的地的一个测试粒子的 Lagrangian 承认了的 Noether 对称的非静止的 spacetime 度量标准。在这上下文,我们首先介绍代表一个 Noether 对称向量题目到一般飞机满足的微分限制的一... 在这篇文章,我们讨论能量守恒定律由搬到一架一般飞机的地的一个测试粒子的 Lagrangian 承认了的 Noether 对称的非静止的 spacetime 度量标准。在这上下文,我们首先介绍代表一个 Noether 对称向量题目到一般飞机满足的微分限制的一个一般答案对称的非静止的度量标准。我们然后使用对称的非静止的度量标准由 Feroze 等获得了的飞机的一个班。并且讨论在每种情况中,与杀死对称比较的 Noether 能量守恒定律。 展开更多
关键词 守恒定律 面对称 NOETHER对称性 时空变化 分类 拉格朗日 时空度规 微分约束
Effect of Intravenous Ibuprofen on Ischemia-Reperfusion Injury Following Perioperative Tourniquet in Patients Undergoing Total Knee Arthroplasty 认领
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作者 T. Dulkadiroğlu Ş. M. Aksoy +7 位作者 G. Uğur E. Erkılıç A. D. Özcan S. Erdoğan A. But C. Nural O. Tecimel H. Kara 《麻醉学期刊(英文)》 2021年第1期12-24,共13页
Oxidative stress occurs in the organism with ischemia due to tourniquet use and subsequent reperfusion. Oxidative stress increases postoperative morbidity. Some Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) perform t... Oxidative stress occurs in the organism with ischemia due to tourniquet use and subsequent reperfusion. Oxidative stress increases postoperative morbidity. Some Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) perform their anti-inflammatory effects in part by binding or inhibiting their formation of active oxygen radicals at the site of inflammation. In this study, we aimed to evaluate the effect of IV ibuprofen on ischemia-reperfusion injury (IRI) in patients undergoing total knee arthroplasty over oxidative stress parameters.<span> </span><span>The patients were randomly divided into two groups. Each patient</span><span>’</span><span>s protocol number, age, sex, body mass index (BMI), additional disease, drug use, tourniquet time, hemoglobin value, additional analgesic requirement and application, adverse reaction development on the first postoperative day were recorded in the research follow-up form. Both groups of patients;before anesthesia, 45 minutes after tourniquet application, 5 minutes after tourniquet lowering, 20 minutes after tourniquet lowering and at 24th-hour post-op;TOS, TAS, paraoxonase, arylesterase, myeloperoxidase, catalase, ceruloplasmin, albumin, IMA, thiol-disulfide balance tests were studied. Statistical analysis of test results was performed.</span><span> </span><span>We observed that antioxidants decreased and oxidants increased on the first postoperative day in both groups in patients who underwent total knee arthroplasty. The decrease in antioxidant parameters was higher in IV ibuprofen doses compared to the control group in the case group;these doses indicate that the drug adversely affects the organism in the fight against oxidative stress, which is an undesirable effect. To evaluate this negative effect of IV ibuprofen which is increasingly used in postoperative analgesia, studies with different doses of drugs and different surgeries may be needed.</span> 展开更多
关键词 ISCHEMIA-REPERFUSION IV Ibuprofen Oxidative Stress Knee Arthroplasty Non-Steroidal Anti-Inflammatory Drugs
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Group Analysis, Fractional Explicit Solutions and Conservation Laws of Time Fractional Generalized Burgers Equation 认领
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作者 王岗伟 A. H. Kara 《理论物理通讯:英文版》 SCIE CAS CSCD 2018年第1期5-8,共4页
关键词 能量守恒定律 汉堡包 方程 组分 时间 ANSATZ 对称方法 非线性
An Analysis of the Invariance and Conservation Laws of Some Classes of Nonlinear Ostrovsky Equations and Related Systems 认领
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作者 K. Fakhar A. H. Kara 《中国物理快报:英文版》 SCIE CAS CSCD 2011年第1期1-4,共4页
在海浪的建模的部分微分方程的一个大班由于 Ostrovsky。我们决定不变性性质(通过谎言点对称发电机) 并且为一些模型的能量守恒定律的构造班。在后者盒子中,方法涉及发现“ multipliers ”在“高顺序”的上与一个更强壮的重音与能量守... 在海浪的建模的部分微分方程的一个大班由于 Ostrovsky。我们决定不变性性质(通过谎言点对称发电机) 并且为一些模型的能量守恒定律的构造班。在后者盒子中,方法涉及发现“ multipliers ”在“高顺序”的上与一个更强壮的重音与能量守恒定律联系了。在对称和能量守恒定律之间的关系被考虑 multipliers 的不变性性质调查。 展开更多
关键词 守恒定律 非线性方程组 变性 系统 偏微分方程 奥斯特 模型类 发电机
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